I recently came across a library called Beautiful Soup, which is fantastic for web scraping. It allows you to parse HTML and XML documents effortlessly. It's saved me a lot of time in extracting information from websites. Another cool library I've found is Plotly, which provides interactive and visually appealing data visualizations. It's really handy when you want to create interactive plots and dashboards. These are just a few examples, but there are so many libraries in the Python ecosystem that it's hard to keep track!

One of my favorite lesser-known libraries is Boltons. It provides a set of generally useful, small, and often pure-Python utility modules. It has a bunch of helpful tools and data structures that come in handy when working on various projects. Another library that I've found to be quite useful is Tablib, which simplifies the handling of tabular data. It's great for working with spreadsheets or CSV files and has a lot of handy features for manipulating and exporting data. These are just a couple of recommendations, but there's definitely a treasure trove of lesser-known libraries waiting to be explored!

There are a couple of hidden gems that I've stumbled upon recently. One of them is Faker, which generates fake data like names, addresses, and even photos. It's great for testing and generating sample data. Another library that I've found valuable is Arrow, which simplifies working with dates and times. It has a clean API and makes it a breeze to manipulate and format dates. These are just a couple of examples, but there are certainly many more out there waiting to be discovered!